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Journal of Science and Applicative Technology
Published by Institut Teknologi Sumatera
ISSN : 25810545     EISSN : 25810545     DOI : -
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Materials Science & Nanotechnology Mechanical Engineering
Journal of Science and Applicative Technology is soon indexed by google scholar, SINTA (Science and Technology Index), portal garuda, DOAJ (Directory of Open Access Journals). This journal has been registered at PDII LIPI (ISSN: 2581-0545). This journal is semiannual journal. It will be published in June and December. The objective of the journal is to provide a room for students, researchers, lecturers, pratictioners and communities to present their ideas regarding several topics covered in this journal. Journal of Science and Applicative Technology covers wide area of research. We welcome full research articles in the following area, including but not limited to : 1. Renewable Energy 2. Green Infrastructure 3. Community Development 4. Computer Science 5. Civil and Environmental Engineering 6. Electrical Engineering 7. Mechanical Engineering 8. Telecommunication 9. Earth and Planetary Sciences (Geography, Geodesy, Geology, Geophysics, Oceanography, Astronomy, Atmospheric) 10. Natural Sciences (Mathematics, Chemistry, Physics, Statistics) 11. Life Sciences (Biochemistry, Biology, Pharmacy) 12. Regional and City Planning
Arjuna Subject : -
Articles 5 Documents
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Search results for , issue "Vol 2 No 2 (2018): Journal of Science and Applicative Technology December Chapter" : 5 Documents clear
DIVERSITAS DAN EKOLOGI MAKAN BURUNG PANTAI DI KAWASAN PANTAI BARU, KABUPATEN DELI SERDANG SUMATERA UTARA NURUL HUSNA SIREGAR; Erni Jumilawaty
Journal of Science and Applicative Technology Vol 2 No 2 (2018): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (893.854 KB) | DOI: 10.35472/281460

Abstract

Pantai Baru area of Deli Serdang is located on the East Coast of Sumatera that has been as Important Bird Area (IBA). The wetland type of this area are consisted of ponds, mangroves, and mudflat that occupied by shorebirds both for feeding and resting area. This study aimed to analyze the diversity and potential food of shorebirds Pantai Baru area. Concentration count method and Corer methord were used to collect the shorebirds and macrozoobenthos data. The study found 19 species of shorebirds and 21 species of macrozoobenthos. The diversity index of shorebirds ranged from 1.89 to 2.50 on medium category with the evenness index ranged from 0.84 to 0.97 with high category, while diversity index of macrozoobenthos was 1.09 on medium category with evenness index 0.36 on small category.
UJI AKTIVITAS ANTIBAKTERI EKSTRAK BUAH Rivina humilis L. TERHADAP Klebsiella pneumoniae DAN Escherichia coli mariyam mariyam
Journal of Science and Applicative Technology Vol 2 No 2 (2018): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (295.721 KB) | DOI: 10.35472/281477

Abstract

Rivina humilis L. is herbaceous bushy perennial plant found in shrubs. The fruit extract of Rivina humilis L. had experienced antibacterial activity against Klebsiella pneumoniae and Escherichia coli. The crude extract of nonpolar fraction (n-hexane) of Rivina humilis L. showed negative antibacterial activity towards Klebsiella pneumoniae and Escherichia coli whereas the methanolic extract has antibacterial activity with 12 mm of inhibition zone for Klebsiella pneumoniae and 10 mm for E.coli in 1 ppm concentration. Determination of MIC (Minimum Inhibitory Concentration) was conducted with variation of concentration (w/v) 1 ppm; 0.8 ppm; 0.6 ppm; 0.2 ppm; 0 ppm (negative control), and chloramphenicol (positive control). The result of MIC determination against Klebsiella pneumoniae showed that the width and the inhibition zone index in the minimum concentration (0.2 ppm) were 7 mm and 1.36, respectively. While towards E.coli, MIC determination exhibited positive result at 0.6 ppm with the width and the inhibition zone index were 8 mm and 1.78 respectively.
ANALISIS KINERJA HIGH PRESSURE HEATER (HPH) TIPE SHELL AND TUBE HEAT EXCHANGER Devia Gahana
Journal of Science and Applicative Technology Vol 2 No 2 (2018): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (432.243 KB) | DOI: 10.35472/281416

Abstract

Heat exchanger is one of the supporting production equipment that move the heat energy from one of fluid to another fluid flow. One example of a heat exchanger in power plant industry is High Pressure Heater (HPH). HPH is high pressure feedwater heater that using hot steam turbine waste product used as heating medium before entering the economizer on boiler to reduce the work of boiler. This research was conducted to determine the effective efficiency of High Pressure Heater at Power Plant Industry. This efficiency determination is based on thermodynamics and heat transfer analysis with Log Mean Temperature Difference (LMTD) method and Number of Transfer Unit (NTU) method. The analysis is to determining the effective heat transfer, overall heat transfer coefficient (U), Effectiveness and the analysis of pressure drop (∆P). The analysis results obtained the efffective heat transfer of 37.013 kW, overall heat transfer coefficient (U) of 502,48, effectiveness of 0,47 and the number of pressure drop of 23.498,06 Pa.
the APPLICATION OF VDI 2222 METHOD IN THE PROCESS OF DESIGNING TOOLS FOR ASSEMBLING THE FOUR WAY ENTRY PALLET Melati Kurniawati
Journal of Science and Applicative Technology Vol 2 No 2 (2018): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (766.504 KB) | DOI: 10.35472/281433

Abstract

The research was conducted at UD X, this company made one type of pallet, four way entry pallet (local pallet). The average order in a month is 2000 units, which 60% of order completed by the company and the other 40% by subcontracts. In this pallet assembly process, joining each components is doing manually by the operator without tools. While the assembly process needed high accuracy and much time to do. Therefore, tools are needed by operators to carry out the assembly process. So using tools can reduce the process time and the company does not need to subcontracts. To solve that problem, a tool was designed use Verein Deutsche Inginieuer 2222 method (VDI 2222). The result of the design was a pallet assembly aid with allumunium alloy as the base material. The design implementation process which requires a cost of Rp. 6,013,055.26 will be reach the break even point when 7618 units produced. If the design is implemented, the company does not need to subcontract, because with this tool it can save the assembly time by 61.66% from the initial time.
Design of E. Coli Systems as Iron Waste Binders for Wastewater Treatment using Synthetic Biology Approach Indah Oktaviani
Journal of Science and Applicative Technology Vol 2 No 2 (2018): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (569.066 KB) | DOI: 10.35472/281443

Abstract

The development of recombinant DNA technology and the emerging field of synthetic biology have open up a more advanced era of biotechnology. The discoveries are developed to solve the existing problems in the community.The presence of the iGEM competition initiated by the iGEM Foundation since 2003 adding up new data and a new discovery that is constantly being improved upon, so that peoples’ interest and concern with synthetic biology in the world are increasing every year, including in Indonesia.This paper discusses the idea of design to develop an expression system with a synthetic biology approach using standard parts listed on the iGEM website.The system design uses Escherichia coli as its chassis to have the capability as an iron waste bioaccumulator agent in the waters. This draft is expected to be one of the contributions for the future of the development of synthetic biology ideas, research, and applications in handling environmental problems in Indonesia.

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